Last modified by Edwin Chen on 2022/11/22 09:38
<
From version < 8.2 >
edited by Xiaoling
on 2022/06/02 12:03
To version < 19.1 >
edited by Bei Jinggeng
on 2022/11/14 14:01
>
Change comment: There is no comment for this version

Summary

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Title
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1 - Point to Point Communication of LT-22222-L
1 +Point to Point Communication of LT-22222-L
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
... ... @@ -1,7 +1,10 @@
1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
1 +**Contents： **
2 +
2 2  {{toc/}}
3 -{{/box}}
4 4  
5 +
6 +
7 +
5 5  = **1. Overview** =
6 6  
7 7  (((
... ... @@ -12,19 +12,18 @@
12 12  [[Point to Point Software for LT-22222-L>>https://github.com/dragino/LT-22222-L]].
13 13  )))
14 14  
15 -== ==
16 16  
17 17  = **2. Features for this firmware** =
18 18  
19 -
20 20  == **2.1  Point To Point** ==
21 21  
23 +=== **2.1.1 Overview** ===
22 22  
25 +
23 23  [[image:image-20220602111219-1.png||height="472" width="972"]]
24 24  
25 25  
26 -(% class="wikigeneratedid" id="H2.2.Configure" %)
27 -(% style="color:blue" %)**Configure:**
29 +=== **2.2.2 Configure** ===
28 28  
29 29  
30 30  (% border="1" style="background-color:#f7faff; color:black; width:500px" %)
... ... @@ -39,166 +39,661 @@
39 39  |AT+DI2TODO2=2 |AT+DI2TODO2=2
40 40  |AT+DI2TORO2=2|AT+DI2TORO2=2
41 41  
44 +=== **2.2.3 Serial port display** ===
42 42  
43 43  
44 -== **2.2  Point To Mult-Point ** ==
45 -
46 -
47 +(% class="wikigeneratedid" %)
47 47  [[image:image-20220602111219-2.png]]
48 48  
49 49  
51 +(% class="wikigeneratedid" %)
50 50  [[image:image-20220602111219-3.png]]
51 51  
54 +(% class="wikigeneratedid" %)
52 52  If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
53 53  
54 54  
58 +== **2.2  Point To Mult-Point ** ==
59 +
60 +=== **2.2.1 Overview** ===
61 +
62 +
63 +[[image:1654152390874-192.png]]
64 +
65 +
66 +=== **2.2.2  Configure** ===
67 +
68 +
69 +(% style="color:#4f81bd" %)**Configuration of the TX group:**
70 +
71 +AT+GROUPMOD=0,2
72 +
73 +AT+TXCHS=868700000
74 +
75 +AT+RXCHS=869000000
76 +
77 +AT+TRIG1=2,50
78 +
79 +AT+TRIG2=2,50
80 +
81 +AT+DI1TODO1=1
82 +
83 +AT+DI1TORO1=1
84 +
85 +AT+DI2TODO2=1
86 +
87 +AT+DI2TORO2=1
88 +
89 +
90 +(% style="color:#4f81bd" %)**Configuration for RX group number 1:**
91 +
92 +AT+GROUPMOD=1,1
93 +
94 +AT+TXCHS=869000000
95 +
96 +AT+RXCHS=868700000
97 +
98 +
99 +(% style="color:#4f81bd" %)**Configuration for RX group number 2:**
100 +
101 +AT+GROUPMOD=1,2
102 +
103 +AT+TXCHS=869000000
104 +
105 +AT+RXCHS=868700000
106 +
107 +
108 +=== **2.2.3 Serial port display** ===
109 +
110 +
111 +[[image:image-20220602144747-1.png]]
112 +
113 +
114 +[[image:image-20220602144747-2.png]]
115 +
116 +(((
117 +If the TX group does not receive all the ACK replies from the RX group, it will retransmit up to 4 times, each time interval is 30 seconds, and the retransmission UplinkCounter will not increase.
118 +)))
119 +
120 +
55 55  == **2.3 AT command** ==
56 56  
57 57  
58 -ATZ :  Trig a reset of the MCU
124 +(((
125 +(% style="color:#037691" %)**ATZ** (%%)**: ** Trig a reset of the MCU
126 +)))
59 59  
60 -AT+FDR : Reset Parameters to Factory Default, Keys Reserve
128 +(((
129 +(% style="color:#037691" %)**AT+FDR** (%%)**:**  Reset Parameters to Factory Default, Keys Reserve
130 +)))
61 61  
62 -AT+FCU : Get or Set the Frame Counter Uplink
132 +(((
133 +(% style="color:#037691" %)**AT+FCU** (%%)**:**  Get or Set the Frame Counter Uplink
134 +)))
63 63  
64 -AT+FCD : Get or Set the Frame Counter Downlink
136 +(((
137 +(% style="color:#037691" %)**AT+FCD** (%%)**:**  Get or Set the Frame Counter Downlink
138 +)))
65 65  
66 -AT+TXP : Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
140 +(((
141 +(% style="color:#037691" %)**AT+TXP** (%%)**:**  Get or Set the transmit power, the maximum is 20dBm (default is 14dBm)
142 +)))
67 67  
68 -AT+SYNC : Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
144 +(((
145 +(% style="color:#037691" %)**AT+SYNC** (%%)**:**  Get or Set the Sync word [1:0x34,0:0x12] (default is 1)
146 +)))
69 69  
70 -AT+PMB : Get or Set the preamble (default:8)
148 +(((
149 +(% style="color:#037691" %)**AT+PMB** (%%)**:    **Get or Set the preamble (default:8)
150 +)))
71 71  
72 -AT+TXCHS : Get or Set the transmit frequency of TX (default:868700000)
152 +(((
153 +(% style="color:#037691" %)**AT+TXCHS **(%%)**:** Get or Set the transmit frequency of TX (default:868700000)
154 +)))
73 73  
74 -AT+TXSF : Get or Set the spreading factor of TX (7 to 12) (default:12)
156 +(((
157 +(% style="color:#037691" %)**AT+TXSF **(%%)**:**  Get or Set the spreading factor of TX (7 to 12) (default:12)
158 +)))
75 75  
76 -AT+RXCHS : Get or Set the transmit frequency of RX (default:869000000)
160 +(((
161 +(% style="color:#037691" %)**AT+RXCHS **(%%)**:** Get or Set the transmit frequency of RX (default:869000000)
162 +)))
77 77  
78 -AT+RXSF : Get or Set the spreading factor of RX (7 to 12) (default:12)
164 +(((
165 +(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
166 +)))
79 79  
80 -AT+BW : Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
168 +(((
169 +(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
170 +)))
81 81  
82 -AT+CR : Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
172 +(((
173 +(% style="color:#037691" %)**AT+CR **(%%)**:        **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
174 +)))
83 83  
84 -AT+TDC : Get or set the application data transmission interval in ms(default 10 minutes)
176 +(((
177 +(% style="color:#037691" %)**AT+TDC **(%%)**:**  Get or set the application data transmission interval in ms(default 10 minutes)
178 +)))
85 85  
86 -AT+VER : Get firmware version number
180 +(((
181 +(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
182 +)))
87 87  
88 -AT+SEND : Set Custom sent hex data
184 +(((
185 +(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
186 +)))
89 89  
90 -AT+GROUPMOD : Set or Get the grouping mode of the device (default: 0)
188 +(((
189 +(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
190 +)))
91 91  
92 -AT+GROUPID : Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
192 +(((
193 +(((
194 +(% style="color:#037691" %)**AT+GROUPID **(%%)**:      **Set or Get the password for matching between TX group and RX group, which can be composed of numbers or characters (default: 12345678)
195 +)))
196 +)))
93 93  
94 -AT+TRIG1 : Set or Get the DI1 pin interrupt trigger mode (default 0,0)
198 +(((
199 +(% style="color:#037691" %)**AT+TRIG1 **(%%)**:**  Set or Get the DI1 pin interrupt trigger mode (default 0,0)
200 +)))
95 95  
96 -AT+TRIG2 : Set or Get the DI2 pin interrupt trigger mode (default 0,0)
202 +(((
203 +(% style="color:#037691" %)**AT+TRIG2 **(%%)**:            **Set or Get the DI2 pin interrupt trigger mode (default 0,0)
204 +)))
97 97  
98 -AT+DI1TODO1 : Set or get the mode in which DI1 maps to DO1 (default 0)
206 +(((
207 +(% style="color:#037691" %)**AT+DI1TODO1 **(%%)**:    **Set or get the mode in which DI1 maps to DO1 (default 0)
208 +)))
99 99  
100 -AT+DI1TORO1 : Set or get the mode in which DI1 maps to RO1(default 0)
210 +(((
211 +(% style="color:#037691" %)**AT+DI1TORO1 **(%%)**:    **Set or get the mode in which DI1 maps to RO1(default 0)
212 +)))
101 101  
102 -AT+DI2TODO2 : Set or get the mode in which DI2 maps to DO2(default 0)
214 +(((
215 +(% style="color:#037691" %)**AT+DI2TODO2 **(%%)**:**  Set or get the mode in which DI2 maps to DO2(default 0)
216 +)))
103 103  
104 -AT+DI2TORO2 : Set or get the mode in which DI2 maps to RO2(default 0)
218 +(((
219 +(% style="color:#037691" %)**AT+DI2TORO2 **(%%)**:    **Set or get the mode in which DI2 maps to RO2(default 0)
220 +)))
105 105  
222 +(((
223 +
224 +)))
106 106  
226 +(((
227 +
228 +)))
107 107  
108 -i.g. AT+SEND=01020304 will send a payload of 01020304
230 +(((
231 +(% style="color:#4f81bd" %)**Example 1:**
232 +)))
109 109  
234 +(((
235 +**AT+SEND=01020304 **will send a payload of 01020304
236 +)))
110 110  
111 -i.g. AT+TRIGx=a  Trigger directly without triggering time
238 +(((
239 +
240 +)))
112 112  
113 -AT+TRIGx=a,b  a=0, falling edge;
242 +(((
243 +(% style="color:#4f81bd" %)**Example 2: **
244 +)))
114 114  
115 -a=1, rising edge;
246 +(((
247 +**AT+TRIGx=a    **Trigger directly without triggering time
248 +)))
116 116  
117 - a=2, falling edge or rising edge.
250 +(((
251 +**AT+TRIGx=a,b**
252 +)))
118 118  
119 - b, triggering time in milliseconds
254 +(((
255 +a=0: falling edge;
256 +)))
120 120  
121 - AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms
258 +(((
259 +a=1: rising edge;
260 +)))
122 122  
262 +(((
263 +a=2: falling edge or rising edge;
264 +)))
123 123  
124 -i.g. AT+DI1TODO1= maps value
266 +(((
267 +b:  triggering time in milliseconds.
268 +)))
125 125  
126 - AT+DI1TORO1= maps value
270 +(((
271 +AT+TRIGx=2,50  Falling edge or rising edge trigger, and the trigger time exceeds 50ms.
272 +)))
127 127  
128 -AT+DI2TODO2= maps value
274 +(((
275 +
276 +)))
129 129  
130 -AT+DI2TORO2= maps value
278 +(((
279 +(% style="color:#4f81bd" %)**Example 3: **
280 +)))
131 131  
282 +(((
283 +**AT+DI1TODO1= maps value**
284 +)))
132 132  
286 +(((
287 +**AT+DI1TORO1= maps value**
288 +)))
133 133  
290 +(((
291 +**AT+DI2TODO2= maps value**
292 +)))
134 134  
135 -(% style="width:706px" %)
136 -|(% style="width:102px" %)Maps value|(% style="width:331px" %)DIx to DOx|(% style="width:268px" %)DIx to ROx
137 -|(% style="width:102px" %)0|(% style="width:331px" %)No Action|(% style="width:268px" %)No Action
138 -|(% style="width:102px" %)1|(% style="width:331px" %)If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(% style="width:268px" %)(((
294 +(((
295 +**AT+DI2TORO2= maps value**
296 +)))
297 +
298 +(((
299 +
300 +)))
301 +
302 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
303 +|=(% style="width: 102px;" %)(((
304 +Maps value
305 +)))|=(% style="width: 331px;" %)(((
306 +DIx to DOx
307 +)))|=(% style="width: 268px;" %)(((
308 +DIx to ROx
309 +)))
310 +|(% style="width:102px" %)(((
311 +0
312 +)))|(% style="width:331px" %)(((
313 +No Action
314 +)))|(% style="width:268px" %)(((
315 +No Action
316 +)))
317 +|(% style="width:102px" %)(((
318 +1
319 +)))|(% style="width:331px" %)(((
320 +If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level
321 +)))|(% style="width:268px" %)(((
322 +(((
139 139  If DIx is high, control ROx to close,
324 +)))
140 140  
326 +(((
141 141  if DIx is low, control ROx to open
142 142  )))
143 -|(% style="width:102px" %)2|(% style="width:331px" %)If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(% style="width:268px" %)(((
329 +)))
330 +|(% style="width:102px" %)(((
331 +2
332 +)))|(% style="width:331px" %)(((
333 +If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level
334 +)))|(% style="width:268px" %)(((
335 +(((
144 144  If DIx is high, control ROx to open,
337 +)))
145 145  
339 +(((
146 146  if DIx is low, control ROx to close
147 147  )))
148 -|(% style="width:102px" %)3|(% style="width:331px" %)DOx state flip|(% style="width:268px" %)ROx state flip
342 +)))
343 +|(% style="width:102px" %)(((
344 +3
345 +)))|(% style="width:331px" %)(((
346 +DOx state flip
347 +)))|(% style="width:268px" %)(((
348 +ROx state flip
349 +)))
149 149  
150 -i.g. AT+GROUPMOD=0  Set to point to point mode
351 +(((
352 +(% style="color:#4f81bd" %)**Example 4: **
353 +)))
151 151  
152 -AT+GROUPMOD=0,aa  Set the TX group that controls the number of aa (The maximum value of aa is 8)
355 +(((
356 +**AT+GROUPMOD=0**  Set to point to point mode
357 +)))
153 153  
154 -AT+GROUPMOD=1,bb   Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
359 +(((
360 +**AT+GROUPMOD=0,aa**  Set the TX group that controls the number of aa (The maximum value of aa is 8)
361 +)))
155 155  
363 +(((
364 +(((
365 +**AT+GROUPMOD=1,bb**  Set to the RX group controlled by the TX group, numbered bb(The maximum value of aa is 8)
366 +)))
367 +)))
156 156  
157 -AT+GROUPMOD=0,2  Set to control the TX group of the two RX groups
369 +(((
370 +**AT+GROUPMOD=0,2**  Set to control the TX group of the two RX groups
371 +)))
158 158  
159 -AT+GROUPMOD=1,1  Set the RX group numbered 1
373 +(((
374 +**AT+GROUPMOD=1,1**  Set the RX group numbered 1
375 +)))
160 160  
161 -AT+GROUPMOD=1,2  Set the RX group numbered 2
377 +(((
378 +**AT+GROUPMOD=1,2**  Set the RX group numbered 2
162 162  
163 163  
381 +=== 2.3.1 TRIG command is configured in the transmit LT. (LT1)(Since firmware 1.3) ===
382 +)))
164 164  
384 +**AT+TRIGx=a     **Trigger transmit directly without triggering time
385 +
386 +**AT+TRIGx=a,b**  Trigger transmit with triggering time threshold
387 +
388 +**AT+TRIGx=a,b,c **Trigger transmit with triggering time threshold, and continue to transmit every xx seconds if DI status no change.
389 +
390 +
391 +a=0: falling edge;
392 +
393 +a=1: rising edge;
394 +
395 +a=2: falling edge or rising edge;
396 +
397 +b:  triggering time in milliseconds.
398 +
399 +c: transmit interval
400 +
401 +
402 +**Use Case 1**: Once the DI1 port status change ( either from low to high or high to low, LT1 sends a trigger to LT-2)
403 +
404 +Command:
405 +
406 +AT+TRIG1=2,50  Falling edge or rising edge trigger, and the trigger time should exceed 50ms.
407 +
408 +
409 +**Use Case 2: **Sync LT2 RO / DO status with LT1 every minute.
410 +
411 +Command:
412 +
413 +AT+TRIG2=2,50,60 Once there is falling edge or rising edge on DI2 of LT1, LT1 will transmit trigger to LT2 and LT2 can sync the status of RO/DO.
414 +
415 +
416 +=== 2.3.2 RO/DO is configured in the receiver LT (LT2)(Since firmware 1.3) ===
417 +
418 +AT+DI1TODO1= maps value[,latch time]
419 +
420 +AT+DI1TORO1= maps value[,latch time]
421 +
422 +AT+DI2TODO2= maps value[,latch time]
423 +
424 +AT+DI2TORO2= maps value[,latch time]
425 +
426 +
427 +(% border="1" style="background-color:#f7faff; color:black; width:706px" %)
428 +| **Maps value**|DIx to DOx|DIx to ROx
429 +|0|No Action|No Action
430 +|1|If DIx is high, control DOx to output low level, If DIx is low, control DOx to output high level|(((
431 +If DIx is high, control ROx to close,
432 +
433 +if DIx is low, control ROx to open
434 +)))
435 +|2|If DIx is high, control DOx to output high level, If DIx is low, control DOx to output low level|(((
436 +If DIx is high, control ROx to open,
437 +
438 +if DIx is low, control ROx to close
439 +)))
440 +|3|DOx state flip|ROx state flip
441 +
442 +latch time, if latch time is defined, DO or RO will go back to the original status after latch time, if there is a new trigger comes, the LT2 will use the new latch time settings and ignore the old one.
443 +
444 +
445 +**Case1**:
446 +
447 +AT+DI1TODO1=1 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, if DI1 of LT1 is trigger high, DO1 of LT2 will output low, if DI1 of LT1 is trigger low, DO2 of LT2 will output high.
448 +
449 +
450 +**Case2**:
451 +
452 +AT+DI1TODO1=1,60 ~/~/ LT2 DO1 will follow LT1 DI1 trigger command, DO1 will keep the status 60 seconds and then go back to original state.
453 +
454 +
455 +=== 2.3.3 Save the RO/DO status during power off(Since firmware 1.3) ===
456 +
457 +Enable/Disbale retain Digital Output/Relay Output after power off / Power On
458 +
459 +AT+DOROSAVE=0 ~/~/ Disable Retain after power off/on
460 +
461 +AT+DOROSAVE=1 ~/~/ Enable Retain after power off/on
462 +
463 +AT+DOROSAVE=2,a,b,c,d ~/~/ set DO/RO port to default state after power on.
464 +
465 +a: for DO1
466 +
467 +b: for DO2
468 +
469 +c: for RO1
470 +
471 +d: for RO2.
472 +
473 +Example:
474 +
475 +AT+DOROSAVE=2,0,0,0,1 ~/~/ Set DO1/DO2 to Low, RO1 to open after power on , set RO2 to close after power on.
476 +
477 +
478 +=== 2.3.4 Control Sleep status.(Since firmware 1.3) ===
479 +
480 +DI2 can be used to set LT into sleep mode.
481 +
482 +AT+DI2SLEEP=1 ~/~/Enable DI2 as Sleep pin
483 +
484 +AT+DI2SLEEP=0 ~/~/Disable DI2 as Sleep pin
485 +
486 +When DI2 is enabled as sleep pin, a falling trigger (with 500ms pulse) will set LT into sleep mode. A raising trigger will wake up it again.
487 +
488 +
165 165  == **2.4 Data Format** ==
166 166  
491 +(((
167 167  8 bytes of GROUPID + 9 bytes of payload + 4 bytes of checksum
493 +)))
168 168  
495 +(((
496 +
497 +)))
169 169  
170 -Payload:
499 +(((
500 +(% style="color:#4f81bd" %)**Payload:**
501 +)))
171 171  
172 -|**Size (bytes)**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|**1**
173 -|**Value**|(% colspan="2" %)address|(% colspan="2" %)request|(% colspan="2" %)ACK|(% colspan="2" %)(((
503 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
504 +|=(% style="width: 123px;" %)(((
505 +**Size (bytes)**
506 +)))|=(% style="width: 107px;" %)(((
507 +1
508 +)))|=(% style="width: 107px;" %)(((
509 +1
510 +)))|=(% style="width: 107px;" %)(((
511 +1
512 +)))|=(% style="width: 107px;" %)(((
513 +1
514 +)))|=(% style="width: 107px;" %)(((
515 +1
516 +)))|=(% style="width: 107px;" %)(((
517 +1
518 +)))|=(% style="width: 107px;" %)(((
519 +1
520 +)))|=(% style="width: 107px;" %)(((
521 +1
522 +)))|=(% style="width: 107px;" %)(((
523 +1
524 +)))
525 +|(% style="width:123px" %)(((
526 +**Value**
527 +)))|(% style="width:38px" %)(((
528 +address
529 +)))|(% style="width:70px" %)(((
530 +request
531 +)))|(% style="width:52px" %)(((
532 +ACK
533 +)))|(% style="width:127px" %)(((
534 +(((
174 174  DI1&
536 +)))
175 175  
538 +(((
176 176  DI1 level
177 -)))|DI1TODO1
178 -|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)**1**|(% colspan="2" %)
179 -|(% colspan="2" %)DI1TORO1|(% colspan="2" %)(((
540 +)))
541 +)))|(% style="width:101px" %)(((
542 +DI1TODO1
543 +)))|(% style="width:91px" %)(((
544 +DI1TORO1
545 +)))|(% style="width:111px" %)(((
546 +(((
180 180  DI2&
548 +)))
181 181  
550 +(((
182 182  DI2 level
183 -)))|(% colspan="2" %)DI2TODO2|(% colspan="2" %)DI2TORO2|(% colspan="2" %)
184 -| | | | | | | | | |
552 +)))
553 +)))|(% style="width:105px" %)(((
554 +DI2TODO2
555 +)))|(% style="width:106px" %)(((
556 +DI2TORO2
557 +)))
185 185  
186 -The first byte: 00 is the broadcast address, 01-08 is the RX group number
559 +(((
560 +(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
561 +)))
187 187  
188 -The second byte: send mapping request when not 0, not request when it is 0
563 +(((
564 +(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
565 +)))
189 189  
190 -The third byte: ACK returned to the sender after the mapping is completed
567 +(((
568 +(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
569 +)))
191 191  
192 -The fourth byte: the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered
571 +(((
572 +(((
573 +(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DI1, and the low four bits are the level of DI1 when the interrupt is triggered.
574 +)))
575 +)))
193 193  
194 -The Fifth byte: DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered
577 +(((
578 +(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
579 +)))
195 195  
196 -The Sixth byte: 0 does not trigger interrupt when DI1TORO1 interrupt is triggered
581 +(((
582 +(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
583 +)))
197 197  
198 -The seventh byte: the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered
585 +(((
586 +(((
587 +(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent DI2, and the low four bits are the level of DI2 when the interrupt is triggered.
588 +)))
589 +)))
199 199  
200 -The 8th byte: DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered
591 +(((
592 +(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
593 +)))
201 201  
202 -The 9th byte: DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered
595 +(((
596 +(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
597 +)))
203 203  
599 +(((
204 204  
601 +
602 +(% style="color:#4f81bd" %)**Payload:（Since firmware 1.3）The receiver replies to the sent packet**
603 +)))
604 +
605 +(% border="1" style="background-color:#f7faff; color:black; width:938px" %)
606 +|=(% style="width: 123px;" %)(((
607 +**Size (bytes)**
608 +)))|=(% style="width: 107px;" %)(((
609 +1
610 +)))|=(% style="width: 107px;" %)(((
611 +1
612 +)))|=(% style="width: 107px;" %)(((
613 +1
614 +)))|=(% style="width: 107px;" %)(((
615 +1
616 +)))|=(% style="width: 107px;" %)(((
617 +1
618 +)))|=(% style="width: 107px;" %)(((
619 +1
620 +)))|=(% style="width: 107px;" %)(((
621 +1
622 +)))|=(% style="width: 107px;" %)(((
623 +1
624 +)))|=(% style="width: 107px;" %)(((
625 +1
626 +)))
627 +|(% style="width:123px" %)(((
628 +**Value**
629 +)))|(% style="width:38px" %)(((
630 +address
631 +)))|(% style="width:70px" %)(((
632 +request
633 +)))|(% style="width:52px" %)(((
634 +ACK
635 +)))|(% style="width:127px" %)(((
636 +(((
637 +DO1&
638 +)))
639 +
640 +(((
641 +DO1 level
642 +)))
643 +)))|(% style="width:101px" %)(((
644 +DI1TODO1
645 +)))|(% style="width:91px" %)(((
646 +DI1TORO1
647 +)))|(% style="width:111px" %)(((
648 +(((
649 +RO2&
650 +)))
651 +
652 +(((
653 +RO2 level
654 +)))
655 +)))|(% style="width:105px" %)(((
656 +DI2TODO2
657 +)))|(% style="width:106px" %)(((
658 +DI2TORO2
659 +)))
660 +
661 +(((
662 +(% style="color:#037691" %)**The first byte**(%%)**:**  00 is the broadcast address, 01-08 is the RX group number.
663 +)))
664 +
665 +(((
666 +(% style="color:#037691" %)**The second byte**(%%)**:**  send mapping request when not 0, not request when it is 0.
667 +)))
668 +
669 +(((
670 +(% style="color:#037691" %)**The third byte**(%%)**:**  ACK returned to the sender after the mapping is completed.
671 +)))
672 +
673 +(((
674 +(((
675 +(% style="color:#037691" %)**The fourth byte**(%%)**:**  the high four bits are 1 to represent DO1, and the low four bits are the level of DO1 when the interrupt is triggered.
676 +)))
677 +)))
678 +
679 +(((
680 +(% style="color:#037691" %)**The Fifth byte**(%%)**:       **DI1TODO1 when the interrupt is triggered, 0 when the interrupt is not triggered.
681 +)))
682 +
683 +(((
684 +(% style="color:#037691" %)**The Sixth byte**(%%)**:**  0 does not trigger interrupt when DI1TORO1 interrupt is triggered.
685 +)))
686 +
687 +(((
688 +(((
689 +(% style="color:#037691" %)**The seventh byte**(%%)**:**  the high four bits are 2 to represent RO2, and the low four bits are the level of RO2 when the interrupt is triggered.
690 +)))
691 +)))
692 +
693 +(((
694 +(% style="color:#037691" %)**The 8th byte**(%%)**:          **DI2TODO2 when the interrupt is triggered, 0 when the interrupt is not triggered.
695 +)))
696 +
697 +(((
698 +(% style="color:#037691" %)**The 9th byte**(%%)**:**  DI2TORO2 when an interrupt is triggered, 0 when an interrupt is not triggered.
699 +)))
700 +
701 +
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